Best Free Software for Linux


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This list of Best Free Software for Linux now includes 153 apps in various categories. Among a plethora of freeware products, we have selected some gems in each category and added them to the list with clear and brief descriptions of each app.

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Quill is a free, open siource WYSIWYG editor built for the modern web:


"... Kamailio is an Open Source SIP Server released under GPL, able to handle thousands of call setups per second. Kamailio can be used to build large platforms for VoIP and realtime communications – presence, WebRTC, Instant messaging and other applications ...":


"... Embedthis Pak is a package manager for application components. Pak makes it easy to retrieve, integrate and manage components for applications ...":


Nikola — static site generator:


"... Grav is a fast, simple, and flexible file-based web-platform ...":


Yawls (Yet Another Webcam Light Sensor) - adjust the brightness level of your display by using the internal/external webcam of your notebook as an ambient light sensor:


Seed7 - interpreter and compiler for the Seed7 programming language:


slap is a Sublime-like terminal-based text editor that strives to make editing from the terminal easier:


RPGboss is a 2D role-playing game engine and application designer:


Raccoon - A Google Play desktop client:


MikroLock combines modern cryptography and ease of use:

"... Kakoune is a code editor heavily inspired by Vim, as such most of its commands are similar to vi’s ones ...":


"... Scumblr is a web application that allows performing periodic searches and storing/taking actions on the identified results ...":


"... qfc is a shell auto-complete alternative which features real-time multi-directories matching: It provides results while you type against files in the current directory and its sub-directories ...":


doit is a task management and automation tool:


".. toplip is our command line, very strong encryption and decryption utility with optional plausible deniability, image embedding, and multiple/variable passphrase complexity ...":


"... Pentobi is a computer opponent for the board game Blokus ...":


mtCellEdit - a lightweight spreadsheet program:


"... Cyrus is a highly scalable enterprise mail system designed for use in enterprise environments of various sizes using standards based technologies ...":


nuBASIC is a programming language from the BASIC family:

"... Oh-My-Zsh is an open source, community-driven framework for managing your ZSH configuration ...":


"... Fifth is a Linux-exclusive browser that carries the best features from Opera, as well as a few unique features that are likely to please Linux power users ...":


"Scribes .... a minimalist text editor that combines simplicity with power ...":


hbro - a minimal web-browser written and configured in Haskell:


"... tabble is a small alternative X shell which presents your programs in tabs for easy launch. It is not meant to replace a window manager, just complement it ...":


howm - a lightweight, X11 tiling window manager that behaves like vim:
Vault secures, stores, and tightly controls access to tokens, passwords, certificates, API keys, and other secrets in modern computing:
The traditional vi - the traditional vi editor, ported to modern Unix systems:

Edbrowse is a combination editor, browser, and mail client that is 100% text based:

"... Fotoxx is a free open source Linux program for photo and image editing and collection management.The goal is to meet the needs of serious photographers while remaining fast and easy to use ...":

"... Geekbench 3 is Primate Labs' cross-platform processor benchmark, with a new scoring system that separates single-core and multi-core performance, and new workloads that simulate real-world scenarios. Geekbench 3 makes it easier than ever to find out if your computer is up to speed ...":

wkhtmltopdf and wkhtmltoimage are open source (LGPLv3) command line tools to render HTML into PDF and various image formats using the QT Webkit rendering engine:

NxFilter is a freeware web-filter:


"... K2pdfopt optimizes PDF/DJVU files for mobile e-readers (e.g. the Kindle) and smartphones. It works well on multi-column PDF/DJVU files and can re-flow text even on scanned PDF files. It can also be used as a general PDF copying/cropping/re-sizing/OCR-ing manipulation tool ...":


Lurch is a simple math word processor with a general-purpose math checker built in:


Knot DNS is a high-performance authoritative-only DNS server:


Vim colors:


CmapTools software empowers users to construct, navigate, share and criticize knowledge models represented as concept maps:



Packer is a tool for creating machine and container images for multiple platforms from a single source configuration:

Ring gives you a full control over your communications and an unmatched level of privacy:


"... Smuxi - user-friendly IRC/Twitter/XMPP/Campfire/JabbR client ...":


web-vmstats - prettify vmstats in your browser:




FVWM-Crystal aims to create an easy to use, eye-candy but also powerful desktop environment for Linux:

Fedy lets you install multimedia codecs and additional software that Fedora doesn't want to ship, like mp3 support, Adobe Flash, Oracle Java etc., and much more with just a few clicks:


Nuclide is a collection of packages for Atom to provide IDE-like functionality for a variety of programming languages and technologies:


BowlerStudio is a device manager, scripting engine, CAD package, and simulation tool all in one application:

Viber for Linux lets you send free messages and make free calls to other Viber users on any device and network, in any country:


k is a zsh script / plugin to make directory listings more readable, adding a bit of color and some git status information on files and directories:


lsp: list files in a mildly human-frendlier manner:


ImageScraper - command line tool which downloads images from the given webpage:

Servo is a prototype web browser engine written in the Rust language:

Dovecot is an open source IMAP and POP3 email server for Linux/UNIX-like systems, written with security primarily in mind:


dispcal GUI - open source display calibration and characterization:


"... aptly is a swiss army knife for Debian repository management: it allows you to mirror remote repositories, manage local package repositories, take snapshots, pull new versions of packages along with dependencies, publish as Debian repository ...":

"... xombrero is a minimalist web browser with sophisticated security features designed-in, rather than through an add-on after-the-fact. In particular, it provides both persistent and per-session controls for scripts and cookies, making it easy to thwart tracking and scripting attacks ...":


Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system:


"... Apache Directory Studio is a complete directory tooling platform intended to be used with any LDAP server however it is particularly designed for use with ApacheDS ...":


"... GlusterFS is a scalable network filesystem. Using common off-the-shelf hardware, you can create large, distributed storage solutions for media streaming, data analysis, and other data- and bandwidth-intensive tasks ...":


"... Graylog is a fully integrated open source log management platform for collecting, indexing, and analyzing both structured and unstructured data from almost any source ...":


 GNS3 - a graphical network simulator to design and configure virtual networks:


NXLOG is a universal log collector and forwarder supporting different platforms, log sources and protocols:


"... Jenkins is an award-winning application that monitors executions of repeated jobs, such as building a software project or jobs run by cron ...":


Ganglia is a scalable distributed monitoring system for high-performance computing systems such as clusters and Grids:

Cuckoo is an automated malware analysis system: a tool that allows you to understand what a given file does when executed inside an isolated environment:


DRBL (Diskless Remote Boot in Linux) is free software, open source solution to managing the deployment of the GNU/Linux operating system across many clients:


Fluentd is an open source data collector for unified logging layer:


"... Kibana is an open source data visualization platform that allows you to interact with your data through stunning, powerful graphics that can be combined into custom dashboards that help you share insights from your data far and wide ...":


"... Entangle provides a graphical interface for “tethered shooting”, aka taking photographs with a digital camera completely controlled from the computer ...":




"... TeemIp ... is a robust Open Source web 2.0 solution that enables professional IP Management activity within IT departments of all size....":


Asciinema - record and share your terminal sessions:


"... Jahshaka is bringing you the future of immersive digital content creation. It delivers a media management and playback platform the is accentuated by compositing, editing and effects modules ...":


CherryMusic - a music streaming server written in Python:

"... tonight you die is an audio rich first person exploration game. players are abandoned in a desolate brutalist cityscape with only a menacing note as a clue: "tonight you die" ...":

"... BitlBee brings IM (instant messaging) to IRC clients. It's a great solution for people who have an IRC client running all the time and don't want to run an additional MSN/AIM/whatever client ...":


"... Vimb is a fast and lightweight vim like web browser based on the webkit web browser engine and the GTK toolkit. Vimb is modal like the great vim editor and also easily configurable during runtime. Vimb is mostly keyboard driven and does not detract you from your daily work ...":


Termite - a keyboard-centric VTE-based terminal, aimed at use within a window manager with tiling and/or tabbing support:


"... preload is an adaptive readahead daemon. It monitors applications that users run, and by analyzing this data, predicts what applications users might run, and fetches those binaries and their dependencies into memory for faster startup times ...":


DBeaver - a universal database tool for developers and database administrators:


Buddi is a personal finance and budgeting program:


FreeWRL is an Open Source, cross platform VRML2 and X3D compliant browser, with script, SAI and EAI support:




Photoflow - a fully non-destructive photo retouching program providing a complete workflow from RAW image development to printing:

Gitolite allows you to setup git hosting on a central server, with fine-grained access control and many more powerful features:


mtr combines the functionality of the 'traceroute' and 'ping' programs in a single network diagnostic tool:


etckeeper is a collection of tools to let /etc be stored in a git, mercurial, bazaar or darcs repository:


Valentina Studio is the ultimate data management tool for database administrators:




"... Profile-sync-daemon (psd) is a tiny pseudo-daemon designed to manage your browser's profile in tmpfs and to periodically sync it back to your physical disc (HDD/SSD). This is accomplished via a symlinking step and an innovative use of rsync to maintain back-up and synchronization between the two. One of the major design goals of psd is a completely transparent user experience ...":

4bit terminal color scheme designer:


feh is an X11 image viewer:


qiv - image viewer:


Viewnior is a fast and simple image viewer:


xzgv is a keyboard-controllable fast picture viewer:

"... Iridium is a free, open, and libre browser modification of the Chromium code base, with privacy being enhanced in several key areas. Automatic transmission of partial queries, keywords, metrics to central services inhibited and only occurs with consent. In addition, all our builds are reproducible, and modifications are auditable, setting the project ahead of other secure browser providers ...":


Inox browser:



Epsxe - a Playstation emulator:


Bos Wars is a futuristic real time strategy game (RTS). In a RTS game, the player has to combat his enemies while developing his war economy:


Enpass takes care of all your life important credentials & online accounts in safe and best way:

OpenClonk is a free multiplayer action game in which you control clonks, small but witty and nimble humanoid beings. The game is mainly about mining, settling and fast-paced melees:

Secret Maryo Chronicles is an Open Source two-dimensional platform game with a design similar to classic computer games:


Potrace is a tool for tracing a bitmap, which means, transforming a bitmap into a smooth, scalable image:


"... Koala is a GUI application for Less, Sass, Compass and CoffeeScript compilation, to help web developers to use them more efficiently ...":

"... Compose is a tool for defining and running complex applications with Docker. With Compose, you define a multi-container application in a single file, then spin your application up in a single command which does everything that needs to be done to get it running ...":


"... Solaar is a Linux device manager for Logitech’s  Unifying Receiver peripherals. It is able to pair/unpair devices to the receiver, and for most devices read battery status ...":


PS3 Media Server is a DLNA-compliant UPnP Media Server:

Caddy - the HTTP/2 web server:


Mutate is a simple launcher inspired by Alfred (OS X app) for Linux. Be more productive with hotkeys, keywords and file actions at your fingertips:

Foobnix - lightweight and functional music player for Linux:


Antimony - free graph-based 3D CAD system:




Using ZeroTier One you can create a global provider-independent virtual private cloud network in minutes:


DD-WRT is a Linux based alternative OpenSource firmware suitable for a great variety of WLAN routers and embedded systems:



"... LeoCAD is a CAD program for creating virtual LEGO models. It has an easy to use interface and currently includes over 6000 different pieces created by the ​LDraw community ...":


OpenSCAD is a software for creating solid 3D CAD objects:


Brackets - text editor: